Não informado. Annual report on child and youth welfare. United Nations, Department of Social Affairs.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Annual Report on Child and Youth Welfare. Geneva, Suíça: United Nations, Department of Social Affairs.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Annual Report on Child and Youth Welfare. United Nations, Department of Social Affairs.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.